Centrifugal casting-machine



UNITED STATES OFFICE.

JAMES B. LADD, OF ARDMORE, PENNSYLVANEA, ASSGNOR T UNITED STATES CASTIRON PIPE AND FOUNIDRY CMPANY, F BURLINGTON, NEW JERSEY, A CORPORA TION0F NEW JERSEY.

CENTBUGAL CASTIN G-1VI ACHINE.

Application filed November 1918.

T o all whom if may Conner?? Be it known that I, Janne li, Laon, acitizen of the `United States, residing in Ardmore, in the county ofl\lontg omer)Y anfl State of Pennsylvania, have invented eerY tain newand useful Improvements in fentrifngal Casting-Mael1i1ies, of which thefollowingr is a true and exact description, ret erenee being had to theaccompanying drawin s, whifh forni a part thereof.

ly present invention relates to eentriw gal casting machinesl forforming piper@ or like tubular eas-tinge, and has for its. geni-ralobject to provide improvements in the east ing apparatus adapted'tofacilitate the easy and expeditioue removal of Caetinge troni the moldof the centrifugal casting nlaehine in which they are cast.

The various features ol' novelty whieh characterize my invention arepointed ont with partieularity .in the elaixne annexeil to, and forminga part ot' this speeiiieation. F or a better understanding of theinvention, however, and the advantages obtained with its use, referenceshould be had to the evconlpanying drawings and descriptive niet ter inwhich I have illustrated ancl iieeeriiierl preferred embodiments of myinvention.

Of the drawings: 3g Figure l is an elevation. with partel hrolqen awayand in section. or" a preferred forni oi centrifugal pipe eaetingapparatus untimely ing my present invention.

F ig. 2 is a plan, with parts broken away and in section, of a portionof the appara-ties shown in Fig. l.

F ig. 3 is a partial section on the line BH3 of F 1g. 2. Y

Fig. 4 is an end elevation, with parte broken away and insection, of aportion of the apparatus shown in Fig. 2.

Fig. 5 is a partial sectional elevation of a portion of the apparatusShown in Fie'. l, illustratingr a different condition et the apparatnsfrom that shown in Fig. 1.

Fig. 6 is a section on the line -l of Fig. l. I,

Fig. T is a partial section taken einiilarlv to Fig. l illustrating amodified eonetrnr tion.

' Fig. 8 is a Section illustrating a detail ot construction of the moldemployed with the v'modification illustrated in Fig. 7.

Specification of Letters Pa tent.

Patented June 22. i920.

Seria No, 266.855,

Mg. ie wlan view of a molo part .shown o Fig Y..

Fig, lf3 is a section taken similarlyv to Fig.

l, showing a portion ol' the a )parat'ns shown in that ligure on largerscale. i

In the drawings, A represents a pelleetal at the hell emi ot' aCentrifugal rusting,r ina- 6U rhino for reeling; a pietal pipe with ahell at onreini. ioller supports A for the roiarv pipe niohl li arejonrnalerl in the pedestal A. l represents an integral hearing rollerfornirti on the hell end of the revolvin; r metal pipe xnolrl body Bwhich is ,lil'ertlv engaged hy the peripheries of the support hiprollers A. The-bell end ol' the pipe inolll l ie rloeetl during theCasting opera tion liv :i renewable enp .shaped emi nienlher i0 (fr'formell ol1 metal and lletaehalilv eernrwl to the lnolil l prope as bynieahe ot' the pivoter! whooping holte B2. To 'l'nrilitate the properinsertion and ready removal oi the member C from the niolll B, thenienilier (i is preferably formell with a conical hotly portion enterinra cenit-al portion of the main niolrl part B at `the end ol the lnolflcavity proper. and is provided with a flange at the heee ot' thisconical portion which 30 ahnte aff inet the enfl of the niohl lioely il.Tl ling portion of the end inemY es an axial tubular hoes t n n ilrletlsand eore portion in the i'orin of' an annular collar Ci", which ie 3provitlell :o ith` periphery with a ril (m to forni liu nepal packinggroove S in the hell enll oll the east metal pipe Advan tagreonelv theeollar C3 is supported on a niernlnr (,i' removably Inountefl on the lloC and romprieingf a tubular portion son rounding the hoes (f2, and aradial flange at the outer wml ot the tubular portion. At ite inner annithe nnoltl end niexnher C is lorinml with a hearing C for trnnnion Dturmoil on the roi-responding end of the metal ponring irongh D. The endlnernoer C is also l'orineel with a Spider portion having: a eonirnlopeningr C* in its hub portion. The larger end of this conical *openingatljaren the inolcl eavity.

The enti member C is movetlinto the mold nienher li. :nifl removed freinthe latter, by ineens* oi" an :irni F. mounted to swing about a vertiinlwir; As shown, the arm F eonr prieee a cenit-al hub portion F2 journaledor;

gli

lig-innig l` fila lila s! lfqli i" -i-illl llwu imm its fiiigzigglfuwlltwilli i 'lili lill llzv simu ll"g 11 permil lill; fll'iiflgg Emmy uumlmi' lglw upper lvvm' liz. :mel il; www n. wm'. 'growling leuningnmwmeml; nl 'lio lllwl'i' lever (i5. Siam U2 ,uhmm :is in the iin-m mfrollers mounted 011 tim- 'iaifm mum-- liml A1", positively arregle thumovement UF tlw` pipe S :il thv point in ilS ll'i'llel llt which illespurs G nl" the levers G4 release the ISQ iournaled :it its ends in thepedestals A", and is provided between the ends with an arm H (see Fig.3) connected by links l", passing through. the openings A11' formed inthe frame member A to the cross bend I2 carried by the plunger I of afluid pressure motor cylinder I, shown as secured :it one end to theframe member A, l* represents the pipe for admitting motive fluid to'`and permitting its exhaust from the cylinder l.

In operation the motive luid as admitted to the c-.ylindor I is requiredto bring the arms H up against the underside of the pipe S before thespgotend of the latter leaves the supporting smrfzice formed by therylindrioal bodv portion ot' the mold member l. The arms T then occupythe dotted line position marked H in Fig. Alfter the pipe is moved intothe. dotted line position shown in Fig. 'l and is disengaged from theretractiug means, more motive fluid is admitted to the cylinder l tomore tbc arms H into the dotted line isitionv marked H in Fig. 3. 'lhopipe S t ien rolls off the :irme H on lo the track rails l, provided toreceive. the cast pipe.V The cyiinder i is then operated to re Europe."arms H to the full line position slim in Fig. 3, and when en end member(l, carrying a fresh core collar C, is put in piave und scoured to themold B the latter is in condition fo a. following rusting operation.

Where tho'pipe cast is cylindrical and of uniform third-:ness from oudto end, as is usually the rase with thin pipes` such as the pipo bil,shown in Fig. T, the modified form of apparatus, shown in Figs. 7, and 9may be used. The pipe retraeting ineens propel', shown in Firr. T.comprises a stem G si.- cured to a .-lirlin,r carriage (if which may bemounted and operated as is the varriage (i2 in the construction firstdescribed. The` Stein G is providml. as :shown` with a single grippinglover G4 piroted to the stein Gm. und the latter is also provided with astationary claw (.ir" which engages the outer surare of the pipe, thelatter being." gripped between the ola-w (im and the roughened portion Gof the .lever Gm in the pipe withdraw-.il operation. Tho lever (im isoonnected by a pin und slot connection G to a` lover G* pivoted to ucollar (im sliding on the stem G3. The levers" G" and G are thusconnected and are autoniaticelly adjusted in the pipe. griiliping andreleasing operations in the same manner as are the levers ('i'r and G inthe construction first described. To provide the olea-rance spacenecessary to permit of the movement of the claw G into the pipe enga ingposition shown in F ig. 7, the mold enr member (C is formed with a)rejection C1". The latter.' is in the form oli a portion of a cylinderand is received in e corresponding shaped recess B formed in the mainpipe niold member BB when the mold is in the aeserubled position forcasting. The inner surface o the projection C then forms a portion ofthe cylindrical wal! of the mold eiwit v ll' iile in accordance with the:revisions of the statutes I have illustrated and de scribed the. bestforms of. apparatus embodying my invention now known to me it will beapparent to those skilled in the urn that changes may be made in theform of the apparatus disclosed without departing from the spi rit ofthe invention as set fortli .in the appended claims and that certainfeatures of my invention may sometimes be used to advantage without thecorrespond ing use of other features.

Haring non' described my invention, whatY I claim as new and desire tosecure by Letters Patent, is:

l. in a centrifugal casting apparatus. the combination with a mold bodyand a support in which said body is rotatably mount ed, of an end memberadapted to be insert ed in and detachably soeuredto said mold body andmeans for morini* said end mem bei' into and out of the. meid bodycomprising a pivoted arm mounted to turn about an axis transmise to.land at one side of the axis of said mold body.

2. In u, centrifugal casting machine, the combination with u rotatablemold body and a support in which it is rotatably mounted, ol? an endmember for removably closing one end of the mold, means for moving saidend member from the position in which it closes the mold body end intoaposition out ot alinement with the mold body, comprising an arm pivotedto turn about tie axis transverse to, and laterally displaced from theaxis oi the mold.

3. ln a Centrifugal casting apparatus, the combination with a mold bodyand u sup port in which said body is'rotatably mounted., of en endmember adapted to be inserted in and detachabl' connected to said moldbod and means or moving it into and out of t-lie mold body comprising apivoted arm mounted to turn about an axis transverse to and at one sideof the axis of said mold body. and means mounted on said arm andadjustable with respect to the arm in the direction of the axis of seidbody in one position of said arm connecting the latter to Fluid member.

`4f. In a. centrifugal casting machine, the combination with a rotatablemold body and a support in which it is rotatably mounted, of an endmember for removably closing one end of the mold, and means for moving,rsaid end member from the position in which it closes the mold endinto oposition out ol? alinement with the mold body, oomprising an erm pivotedto turn about am axis transveree'to'nd laterally displaced from thetraoting plunger movable axially of the molrl, und pipe gripping meanscarried by Suid plunger und comprising n lever havingr n portion adaptedto engage the inner wall oi' tho rusting and n second lever engaging themold on the movement of the plunger into tho pipe gripping position andshifting! tlm first named lever into engngeniont with tlnl inner wnll ofthe pipe.

`l. ln wntrifngnl pipe casting appointing tho conllrinntion of arotating mold. and a lcwr into engagement with the inner will 2U of tlmpipeli JAMES B L *KDD

